So I'm getting my presurgery physical in 5 days I'm on opana prescribed legally and have snorted it recreationally even this morning im sure he will look up my nostrals like drs do not that hes searching for drug use or anything is there a way that the dr can figure out I've been snorting them either by looking or blood work and if so is there any way I can prevent him from finding with 5 days left

